摘要
谐振子是金属振动陀螺的关键部件,其固有轴偏差和频差的参数性能直接影响到金属振动陀螺的精度。为了提高金属振动陀螺的性能,从陀螺的结构和工作原理出发,介绍了谐振子的能量损耗原因及其解决办法。在此基础上,通过质量调平原理,对质量不对称的谐振子采用动态调平方法消除薄壁金属圆柱体边缘的不均衡质量,以减小其固有轴偏差和频差。实验结果表明,调平后的谐振子频差小于0.1 Hz,固有轴偏差小于1°,相比调平前有数量级的提高,说明该方法有效的提高金属振动陀螺的整体性能。
The resonator is the crucial parts of metallic vibratory gyroscope, and the performance parameters of inherent axis deviation and frequency diversity directly affect precision of metallic vibratory gyroscope. Based on the gyroscope's structure and operating principle, the reasons for resonator energy loss and the solutions are introduced with the purpose to improve the performance of metallic vibratory gyroscope. A dynamic balancing method is used to eliminate the mass imbalance of thin-walled metal cylindrical resonator and decrease the frequency diversity and the inherent axis deviation. The experiment results show that the frequency diversity and the inherent axis deviation of the balanced resonator are less than 0.1 Hz and 1° respectively. Compared with the imbalance resonator, the parameters have improved 1~2 order of magnitude, and the way of mass balancing is effective on improving performance of metallic vibratory gyroscope.
出处
《中国惯性技术学报》
EI
CSCD
北大核心
2013年第5期672-675,共4页
Journal of Chinese Inertial Technology
基金
科技部国际合作基金资助项目(2009DFR10220)
